#web_bg {
    background: -webkit-linear-gradient(
            0deg,
            rgba(247, 149, 51, 0.1) 0,
            rgba(243, 112, 85, 0.1) 15%,
            rgba(239, 78, 123, 0.1) 30%,
            rgba(161, 102, 171, 0.1) 44%,
            rgba(80, 115, 184, 0.1) 58%,
            rgba(16, 152, 173, 0.1) 72%,
            rgba(7, 179, 155, 0.1) 86%,
            rgba(109, 186, 130, 0.1) 100%
    );
    background: -moz-linear-gradient(
            0deg,
            rgba(247, 149, 51, 0.1) 0,
            rgba(243, 112, 85, 0.1) 15%,
            rgba(239, 78, 123, 0.1) 30%,
            rgba(161, 102, 171, 0.1) 44%,
            rgba(80, 115, 184, 0.1) 58%,
            rgba(16, 152, 173, 0.1) 72%,
            rgba(7, 179, 155, 0.1) 86%,
            rgba(109, 186, 130, 0.1) 100%
    );
    background: -o-linear-gradient(
            0deg,
            rgba(247, 149, 51, 0.1) 0,
            rgba(243, 112, 85, 0.1) 15%,
            rgba(239, 78, 123, 0.1) 30%,
            rgba(161, 102, 171, 0.1) 44%,
            rgba(80, 115, 184, 0.1) 58%,
            rgba(16, 152, 173, 0.1) 72%,
            rgba(7, 179, 155, 0.1) 86%,
            rgba(109, 186, 130, 0.1) 100%
    );
    background: -ms-linear-gradient(
            0deg,
            rgba(247, 149, 51, 0.1) 0,
            rgba(243, 112, 85, 0.1) 15%,
            rgba(239, 78, 123, 0.1) 30%,
            rgba(161, 102, 171, 0.1) 44%,
            rgba(80, 115, 184, 0.1) 58%,
            rgba(16, 152, 173, 0.1) 72%,
            rgba(7, 179, 155, 0.1) 86%,
            rgba(109, 186, 130, 0.1) 100%
    );
    background: linear-gradient(
            90deg,
            rgba(247, 149, 51, 0.1) 0,
            rgba(243, 112, 85, 0.1) 15%,
            rgba(239, 78, 123, 0.1) 30%,
            rgba(161, 102, 171, 0.1) 44%,
            rgba(80, 115, 184, 0.1) 58%,
            rgba(16, 152, 173, 0.1) 72%,
            rgba(7, 179, 155, 0.1) 86%,
            rgba(109, 186, 130, 0.1) 100%
    );
}

/* 文章页背景 */
.layout > div:first-child:not(.recent-posts) {
    /* 以下代表白色透明度为0.3 */
    background: rgba(255, 255, 255, 0.3);
}
/* 所有背景（包括首页卡片、文章页、页面页等） */
#recent-posts > .recent-post-item,
.layout > div:first-child:not(.recent-posts),
.layout_post > #page,
.layout_post > #post,
.read-mode .layout_post > #post {
    /* 以下代表白色透明度为0.3 */
    background: rgba(255, 255, 255, 0.3);
}
